./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float13.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float13.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/bin/utaipan-mTDlp9Zugs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 703e967d9c23f7e5c0b77f9cc7b797efc09a7a47 ........................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float13.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/bin/utaipan-mTDlp9Zugs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 703e967d9c23f7e5c0b77f9cc7b797efc09a7a47 .................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 03:21:37,981 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 03:21:37,983 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 03:21:38,025 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 03:21:38,032 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 03:21:38,037 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 03:21:38,041 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 03:21:38,044 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 03:21:38,048 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 03:21:38,055 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 03:21:38,057 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 03:21:38,058 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 03:21:38,060 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 03:21:38,063 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 03:21:38,065 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 03:21:38,068 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 03:21:38,072 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 03:21:38,073 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 03:21:38,075 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 03:21:38,081 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 03:21:38,088 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 03:21:38,090 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 03:21:38,091 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 03:21:38,093 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 03:21:38,097 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 03:21:38,099 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 03:21:38,099 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 03:21:38,102 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 03:21:38,102 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 03:21:38,104 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 03:21:38,105 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 03:21:38,106 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 03:21:38,108 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 03:21:38,110 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 03:21:38,111 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 03:21:38,112 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 03:21:38,112 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 03:21:38,113 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 03:21:38,113 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 03:21:38,114 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 03:21:38,115 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 03:21:38,115 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 03:21:38,170 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 03:21:38,171 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 03:21:38,172 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 03:21:38,173 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 03:21:38,173 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 03:21:38,173 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 03:21:38,173 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 03:21:38,174 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 03:21:38,174 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 03:21:38,174 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 03:21:38,175 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 03:21:38,175 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 03:21:38,176 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 03:21:38,176 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 03:21:38,176 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 03:21:38,177 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 03:21:38,177 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 03:21:38,178 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 03:21:38,178 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 03:21:38,178 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 03:21:38,178 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 03:21:38,178 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 03:21:38,179 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 03:21:38,179 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 03:21:38,179 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 03:21:38,179 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 03:21:38,179 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 03:21:38,180 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 03:21:38,180 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 03:21:38,180 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 03:21:38,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:21:38,181 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 03:21:38,181 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 03:21:38,181 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 03:21:38,182 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 03:21:38,182 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 03:21:38,182 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 03:21:38,182 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 03:21:38,182 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 03:21:38,183 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/bin/utaipan-mTDlp9Zugs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 703e967d9c23f7e5c0b77f9cc7b797efc09a7a47 [2021-10-16 03:21:38,464 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 03:21:38,484 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 03:21:38,486 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 03:21:38,488 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 03:21:38,489 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 03:21:38,490 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/floats-cbmc-regression/float13.c [2021-10-16 03:21:38,549 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/bin/utaipan-mTDlp9Zugs/data/1531bd57e/78f9ac1481b0436baba61b24bcc79f2b/FLAG5b0f4744c [2021-10-16 03:21:39,023 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 03:21:39,024 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/sv-benchmarks/c/floats-cbmc-regression/float13.c [2021-10-16 03:21:39,030 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/bin/utaipan-mTDlp9Zugs/data/1531bd57e/78f9ac1481b0436baba61b24bcc79f2b/FLAG5b0f4744c [2021-10-16 03:21:39,389 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/bin/utaipan-mTDlp9Zugs/data/1531bd57e/78f9ac1481b0436baba61b24bcc79f2b [2021-10-16 03:21:39,391 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 03:21:39,393 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 03:21:39,398 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 03:21:39,398 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 03:21:39,403 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 03:21:39,404 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:21:39" (1/1) ... [2021-10-16 03:21:39,406 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@529901fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:39, skipping insertion in model container [2021-10-16 03:21:39,407 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:21:39" (1/1) ... [2021-10-16 03:21:39,414 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 03:21:39,432 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 03:21:39,595 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/sv-benchmarks/c/floats-cbmc-regression/float13.c[497,510] [2021-10-16 03:21:39,600 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/sv-benchmarks/c/floats-cbmc-regression/float13.c[569,582] [2021-10-16 03:21:39,601 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/sv-benchmarks/c/floats-cbmc-regression/float13.c[631,644] [2021-10-16 03:21:39,603 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/sv-benchmarks/c/floats-cbmc-regression/float13.c[693,706] [2021-10-16 03:21:39,604 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/sv-benchmarks/c/floats-cbmc-regression/float13.c[764,777] [2021-10-16 03:21:39,605 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/sv-benchmarks/c/floats-cbmc-regression/float13.c[836,849] [2021-10-16 03:21:39,606 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/sv-benchmarks/c/floats-cbmc-regression/float13.c[895,908] [2021-10-16 03:21:39,607 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/sv-benchmarks/c/floats-cbmc-regression/float13.c[954,967] [2021-10-16 03:21:39,609 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:21:39,618 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 03:21:39,631 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/sv-benchmarks/c/floats-cbmc-regression/float13.c[497,510] [2021-10-16 03:21:39,632 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/sv-benchmarks/c/floats-cbmc-regression/float13.c[569,582] [2021-10-16 03:21:39,633 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/sv-benchmarks/c/floats-cbmc-regression/float13.c[631,644] [2021-10-16 03:21:39,635 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/sv-benchmarks/c/floats-cbmc-regression/float13.c[693,706] [2021-10-16 03:21:39,636 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/sv-benchmarks/c/floats-cbmc-regression/float13.c[764,777] [2021-10-16 03:21:39,636 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/sv-benchmarks/c/floats-cbmc-regression/float13.c[836,849] [2021-10-16 03:21:39,637 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/sv-benchmarks/c/floats-cbmc-regression/float13.c[895,908] [2021-10-16 03:21:39,638 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/sv-benchmarks/c/floats-cbmc-regression/float13.c[954,967] [2021-10-16 03:21:39,639 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:21:39,652 INFO L208 MainTranslator]: Completed translation [2021-10-16 03:21:39,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:39 WrapperNode [2021-10-16 03:21:39,653 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 03:21:39,654 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 03:21:39,654 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 03:21:39,655 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 03:21:39,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:39" (1/1) ... [2021-10-16 03:21:39,670 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:39" (1/1) ... [2021-10-16 03:21:39,689 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 03:21:39,690 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 03:21:39,690 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 03:21:39,690 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 03:21:39,699 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:39" (1/1) ... [2021-10-16 03:21:39,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:39" (1/1) ... [2021-10-16 03:21:39,700 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:39" (1/1) ... [2021-10-16 03:21:39,701 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:39" (1/1) ... [2021-10-16 03:21:39,706 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:39" (1/1) ... [2021-10-16 03:21:39,709 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:39" (1/1) ... [2021-10-16 03:21:39,710 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:39" (1/1) ... [2021-10-16 03:21:39,712 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 03:21:39,713 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 03:21:39,713 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 03:21:39,713 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 03:21:39,714 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:39" (1/1) ... [2021-10-16 03:21:39,722 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:21:39,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:21:39,749 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 03:21:39,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 03:21:39,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 03:21:39,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 03:21:39,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 03:21:39,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 03:21:40,032 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 03:21:40,033 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-16 03:21:40,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:21:40 BoogieIcfgContainer [2021-10-16 03:21:40,036 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 03:21:40,038 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 03:21:40,038 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 03:21:40,044 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 03:21:40,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:21:39" (1/3) ... [2021-10-16 03:21:40,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@373843db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:21:40, skipping insertion in model container [2021-10-16 03:21:40,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:39" (2/3) ... [2021-10-16 03:21:40,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@373843db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:21:40, skipping insertion in model container [2021-10-16 03:21:40,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:21:40" (3/3) ... [2021-10-16 03:21:40,053 INFO L111 eAbstractionObserver]: Analyzing ICFG float13.c [2021-10-16 03:21:40,060 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 03:21:40,060 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-10-16 03:21:40,116 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 03:21:40,123 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 03:21:40,138 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-10-16 03:21:40,152 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 25 states have (on average 1.64) internal successors, (41), 33 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:21:40,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-16 03:21:40,160 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:21:40,174 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-16 03:21:40,175 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-10-16 03:21:40,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:21:40,181 INFO L82 PathProgramCache]: Analyzing trace with hash 105871, now seen corresponding path program 1 times [2021-10-16 03:21:40,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:21:40,206 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436816987] [2021-10-16 03:21:40,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:21:40,208 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:21:40,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 03:21:40,348 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 03:21:40,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 03:21:40,429 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-16 03:21:40,433 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-16 03:21:40,434 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:21:40,438 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:21:40,438 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:21:40,439 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:21:40,439 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:21:40,441 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:21:40,442 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:21:40,442 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:21:40,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 03:21:40,455 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 03:21:40,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 03:21:40 BoogieIcfgContainer [2021-10-16 03:21:40,478 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 03:21:40,481 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 03:21:40,481 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 03:21:40,482 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 03:21:40,482 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:21:40" (3/4) ... [2021-10-16 03:21:40,486 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-16 03:21:40,486 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 03:21:40,490 INFO L168 Benchmark]: Toolchain (without parser) took 1094.29 ms. Allocated memory is still 117.4 MB. Free memory was 80.7 MB in the beginning and 65.9 MB in the end (delta: 14.8 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. [2021-10-16 03:21:40,491 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 117.4 MB. Free memory is still 96.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:21:40,493 INFO L168 Benchmark]: CACSL2BoogieTranslator took 255.83 ms. Allocated memory is still 117.4 MB. Free memory was 80.6 MB in the beginning and 93.3 MB in the end (delta: -12.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 03:21:40,494 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.86 ms. Allocated memory is still 117.4 MB. Free memory was 93.1 MB in the beginning and 91.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 03:21:40,496 INFO L168 Benchmark]: Boogie Preprocessor took 22.28 ms. Allocated memory is still 117.4 MB. Free memory was 91.7 MB in the beginning and 90.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 03:21:40,502 INFO L168 Benchmark]: RCFGBuilder took 323.51 ms. Allocated memory is still 117.4 MB. Free memory was 90.6 MB in the beginning and 79.6 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 03:21:40,502 INFO L168 Benchmark]: TraceAbstraction took 439.56 ms. Allocated memory is still 117.4 MB. Free memory was 79.2 MB in the beginning and 66.1 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-16 03:21:40,503 INFO L168 Benchmark]: Witness Printer took 5.03 ms. Allocated memory is still 117.4 MB. Free memory was 66.1 MB in the beginning and 65.9 MB in the end (delta: 242.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:21:40,511 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 117.4 MB. Free memory is still 96.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 255.83 ms. Allocated memory is still 117.4 MB. Free memory was 80.6 MB in the beginning and 93.3 MB in the end (delta: -12.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.86 ms. Allocated memory is still 117.4 MB. Free memory was 93.1 MB in the beginning and 91.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.28 ms. Allocated memory is still 117.4 MB. Free memory was 91.7 MB in the beginning and 90.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 323.51 ms. Allocated memory is still 117.4 MB. Free memory was 90.6 MB in the beginning and 79.6 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 439.56 ms. Allocated memory is still 117.4 MB. Free memory was 79.2 MB in the beginning and 66.1 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 5.03 ms. Allocated memory is still 117.4 MB. Free memory was 66.1 MB in the beginning and 65.9 MB in the end (delta: 242.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 15]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 14, overapproximation of someBinaryArithmeticFLOAToperation at line 5. Possible FailurePath: [L5] const float plus_infinity = 1.0f/0.0f; [L6] const float minus_infinity = 0.0f/-0.0f; [L7] const float NaN = 0.0f * (1.0f/0.0f); [L11] _Bool temp; [L14] temp = NaN < plus_infinity [L15] COND TRUE !(!temp) [L15] reach_error() - UnprovableResult [Line: 18]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 21]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 24]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 27]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 30]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 33]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 36]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 339.1ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 11.6ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 7.1ms SsaConstructionTime, 60.6ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-16 03:21:40,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-5709675 [2021-10-16 03:21:43,161 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 03:21:43,163 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 03:21:43,194 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 03:21:43,194 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 03:21:43,196 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 03:21:43,198 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 03:21:43,201 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 03:21:43,203 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 03:21:43,205 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 03:21:43,206 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 03:21:43,208 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 03:21:43,208 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 03:21:43,210 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 03:21:43,215 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 03:21:43,217 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 03:21:43,218 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 03:21:43,219 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 03:21:43,233 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 03:21:43,241 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 03:21:43,244 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 03:21:43,246 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 03:21:43,250 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 03:21:43,252 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 03:21:43,264 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 03:21:43,264 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 03:21:43,265 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 03:21:43,268 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 03:21:43,269 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 03:21:43,270 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 03:21:43,271 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 03:21:43,272 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 03:21:43,273 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 03:21:43,274 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 03:21:43,275 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 03:21:43,275 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 03:21:43,276 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 03:21:43,277 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 03:21:43,277 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 03:21:43,278 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 03:21:43,279 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 03:21:43,283 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-16 03:21:43,326 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 03:21:43,327 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 03:21:43,328 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 03:21:43,329 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 03:21:43,329 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 03:21:43,329 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 03:21:43,329 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 03:21:43,330 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 03:21:43,330 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 03:21:43,332 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 03:21:43,333 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 03:21:43,333 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 03:21:43,334 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 03:21:43,334 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 03:21:43,334 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 03:21:43,334 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 03:21:43,335 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 03:21:43,335 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 03:21:43,335 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 03:21:43,336 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 03:21:43,336 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 03:21:43,336 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 03:21:43,336 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 03:21:43,337 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 03:21:43,337 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 03:21:43,337 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 03:21:43,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:21:43,338 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 03:21:43,338 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 03:21:43,339 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 03:21:43,339 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 03:21:43,339 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 03:21:43,340 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 03:21:43,340 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 03:21:43,340 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 03:21:43,341 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/bin/utaipan-mTDlp9Zugs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 703e967d9c23f7e5c0b77f9cc7b797efc09a7a47 [2021-10-16 03:21:43,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 03:21:43,816 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 03:21:43,819 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 03:21:43,820 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 03:21:43,821 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 03:21:43,824 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/floats-cbmc-regression/float13.c [2021-10-16 03:21:43,902 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/bin/utaipan-mTDlp9Zugs/data/29e50d587/1f810bfd1c8f44f4bc104098ce800c97/FLAG91adcf4a7 [2021-10-16 03:21:44,456 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 03:21:44,456 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/sv-benchmarks/c/floats-cbmc-regression/float13.c [2021-10-16 03:21:44,464 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/bin/utaipan-mTDlp9Zugs/data/29e50d587/1f810bfd1c8f44f4bc104098ce800c97/FLAG91adcf4a7 [2021-10-16 03:21:44,848 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/bin/utaipan-mTDlp9Zugs/data/29e50d587/1f810bfd1c8f44f4bc104098ce800c97 [2021-10-16 03:21:44,852 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 03:21:44,855 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 03:21:44,859 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 03:21:44,859 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 03:21:44,863 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 03:21:44,863 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:21:44" (1/1) ... [2021-10-16 03:21:44,865 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ad0d84a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:44, skipping insertion in model container [2021-10-16 03:21:44,866 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:21:44" (1/1) ... [2021-10-16 03:21:44,874 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 03:21:44,891 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 03:21:45,089 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/sv-benchmarks/c/floats-cbmc-regression/float13.c[497,510] [2021-10-16 03:21:45,093 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/sv-benchmarks/c/floats-cbmc-regression/float13.c[569,582] [2021-10-16 03:21:45,094 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/sv-benchmarks/c/floats-cbmc-regression/float13.c[631,644] [2021-10-16 03:21:45,095 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/sv-benchmarks/c/floats-cbmc-regression/float13.c[693,706] [2021-10-16 03:21:45,097 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/sv-benchmarks/c/floats-cbmc-regression/float13.c[764,777] [2021-10-16 03:21:45,098 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/sv-benchmarks/c/floats-cbmc-regression/float13.c[836,849] [2021-10-16 03:21:45,100 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/sv-benchmarks/c/floats-cbmc-regression/float13.c[895,908] [2021-10-16 03:21:45,101 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/sv-benchmarks/c/floats-cbmc-regression/float13.c[954,967] [2021-10-16 03:21:45,104 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:21:45,117 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 03:21:45,131 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/sv-benchmarks/c/floats-cbmc-regression/float13.c[497,510] [2021-10-16 03:21:45,132 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/sv-benchmarks/c/floats-cbmc-regression/float13.c[569,582] [2021-10-16 03:21:45,133 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/sv-benchmarks/c/floats-cbmc-regression/float13.c[631,644] [2021-10-16 03:21:45,135 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/sv-benchmarks/c/floats-cbmc-regression/float13.c[693,706] [2021-10-16 03:21:45,136 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/sv-benchmarks/c/floats-cbmc-regression/float13.c[764,777] [2021-10-16 03:21:45,137 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/sv-benchmarks/c/floats-cbmc-regression/float13.c[836,849] [2021-10-16 03:21:45,138 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/sv-benchmarks/c/floats-cbmc-regression/float13.c[895,908] [2021-10-16 03:21:45,139 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/sv-benchmarks/c/floats-cbmc-regression/float13.c[954,967] [2021-10-16 03:21:45,140 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:21:45,191 INFO L208 MainTranslator]: Completed translation [2021-10-16 03:21:45,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:45 WrapperNode [2021-10-16 03:21:45,193 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 03:21:45,194 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 03:21:45,194 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 03:21:45,197 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 03:21:45,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:45" (1/1) ... [2021-10-16 03:21:45,250 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:45" (1/1) ... [2021-10-16 03:21:45,278 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 03:21:45,279 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 03:21:45,279 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 03:21:45,282 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 03:21:45,291 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:45" (1/1) ... [2021-10-16 03:21:45,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:45" (1/1) ... [2021-10-16 03:21:45,297 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:45" (1/1) ... [2021-10-16 03:21:45,298 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:45" (1/1) ... [2021-10-16 03:21:45,316 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:45" (1/1) ... [2021-10-16 03:21:45,319 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:45" (1/1) ... [2021-10-16 03:21:45,327 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:45" (1/1) ... [2021-10-16 03:21:45,333 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 03:21:45,335 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 03:21:45,336 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 03:21:45,336 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 03:21:45,338 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:45" (1/1) ... [2021-10-16 03:21:45,345 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:21:45,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:21:45,376 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 03:21:45,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 03:21:45,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 03:21:45,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 03:21:45,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-16 03:21:45,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 03:21:45,763 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 03:21:45,770 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-16 03:21:45,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:21:45 BoogieIcfgContainer [2021-10-16 03:21:45,772 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 03:21:45,774 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 03:21:45,775 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 03:21:45,778 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 03:21:45,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:21:44" (1/3) ... [2021-10-16 03:21:45,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16fef09d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:21:45, skipping insertion in model container [2021-10-16 03:21:45,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:21:45" (2/3) ... [2021-10-16 03:21:45,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16fef09d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:21:45, skipping insertion in model container [2021-10-16 03:21:45,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:21:45" (3/3) ... [2021-10-16 03:21:45,797 INFO L111 eAbstractionObserver]: Analyzing ICFG float13.c [2021-10-16 03:21:45,802 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 03:21:45,802 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-10-16 03:21:45,870 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 03:21:45,876 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 03:21:45,877 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-10-16 03:21:45,892 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 36 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:21:45,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-16 03:21:45,897 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:21:45,897 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-16 03:21:45,898 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-10-16 03:21:45,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:21:45,919 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2021-10-16 03:21:45,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:21:45,927 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [368178142] [2021-10-16 03:21:45,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:21:45,928 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:21:45,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:21:45,942 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:21:45,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 03:21:46,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:21:46,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 03:21:46,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:21:46,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:21:46,163 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:21:46,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:21:46,269 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:21:46,269 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [368178142] [2021-10-16 03:21:46,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [368178142] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:21:46,270 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:21:46,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 03:21:46,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554886540] [2021-10-16 03:21:46,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 03:21:46,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:21:46,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 03:21:46,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-16 03:21:46,292 INFO L87 Difference]: Start difference. First operand has 37 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 36 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:21:46,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:21:46,455 INFO L93 Difference]: Finished difference Result 55 states and 68 transitions. [2021-10-16 03:21:46,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 03:21:46,457 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-10-16 03:21:46,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:21:46,463 INFO L225 Difference]: With dead ends: 55 [2021-10-16 03:21:46,463 INFO L226 Difference]: Without dead ends: 0 [2021-10-16 03:21:46,465 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 116.9ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-16 03:21:46,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-16 03:21:46,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-16 03:21:46,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:21:46,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-16 03:21:46,488 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2021-10-16 03:21:46,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:21:46,488 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-16 03:21:46,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:21:46,489 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-16 03:21:46,489 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-16 03:21:46,492 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:21:46,492 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:21:46,493 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:21:46,493 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:21:46,493 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:21:46,494 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:21:46,494 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:21:46,494 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:21:46,512 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-16 03:21:46,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:21:46,710 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-16 03:21:46,713 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:21:46,762 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 30) no Hoare annotation was computed. [2021-10-16 03:21:46,762 INFO L857 garLoopResultBuilder]: For program point L27(line 27) no Hoare annotation was computed. [2021-10-16 03:21:46,762 INFO L857 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2021-10-16 03:21:46,762 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 18) no Hoare annotation was computed. [2021-10-16 03:21:46,763 INFO L857 garLoopResultBuilder]: For program point L27-3(line 27) no Hoare annotation was computed. [2021-10-16 03:21:46,763 INFO L857 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2021-10-16 03:21:46,763 INFO L857 garLoopResultBuilder]: For program point L15-1(line 15) no Hoare annotation was computed. [2021-10-16 03:21:46,763 INFO L857 garLoopResultBuilder]: For program point L15-3(line 15) no Hoare annotation was computed. [2021-10-16 03:21:46,763 INFO L857 garLoopResultBuilder]: For program point L36(line 36) no Hoare annotation was computed. [2021-10-16 03:21:46,764 INFO L857 garLoopResultBuilder]: For program point L36-1(line 36) no Hoare annotation was computed. [2021-10-16 03:21:46,764 INFO L857 garLoopResultBuilder]: For program point L36-3(line 36) no Hoare annotation was computed. [2021-10-16 03:21:46,764 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-16 03:21:46,764 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 27) no Hoare annotation was computed. [2021-10-16 03:21:46,765 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-16 03:21:46,765 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-16 03:21:46,765 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2021-10-16 03:21:46,765 INFO L857 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2021-10-16 03:21:46,765 INFO L857 garLoopResultBuilder]: For program point L24-1(line 24) no Hoare annotation was computed. [2021-10-16 03:21:46,766 INFO L857 garLoopResultBuilder]: For program point L24-3(line 24) no Hoare annotation was computed. [2021-10-16 03:21:46,766 INFO L857 garLoopResultBuilder]: For program point L33(line 33) no Hoare annotation was computed. [2021-10-16 03:21:46,777 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-16 03:21:46,777 INFO L857 garLoopResultBuilder]: For program point L33-1(line 33) no Hoare annotation was computed. [2021-10-16 03:21:46,777 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 36) no Hoare annotation was computed. [2021-10-16 03:21:46,778 INFO L857 garLoopResultBuilder]: For program point L33-3(line 33) no Hoare annotation was computed. [2021-10-16 03:21:46,778 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 24) no Hoare annotation was computed. [2021-10-16 03:21:46,778 INFO L857 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2021-10-16 03:21:46,778 INFO L857 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2021-10-16 03:21:46,778 INFO L857 garLoopResultBuilder]: For program point L21-3(line 21) no Hoare annotation was computed. [2021-10-16 03:21:46,779 INFO L853 garLoopResultBuilder]: At program point L38(lines 9 39) the Hoare annotation is: (and (= ULTIMATE.start_main_~temp~0 (_ bv0 8)) (exists ((currentRoundingMode RoundingMode)) (= ~NaN~0 (fp.mul currentRoundingMode (_ +zero 8 24) (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)))))) [2021-10-16 03:21:46,779 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 33) no Hoare annotation was computed. [2021-10-16 03:21:46,779 INFO L857 garLoopResultBuilder]: For program point L30(line 30) no Hoare annotation was computed. [2021-10-16 03:21:46,780 INFO L857 garLoopResultBuilder]: For program point L30-1(line 30) no Hoare annotation was computed. [2021-10-16 03:21:46,780 INFO L857 garLoopResultBuilder]: For program point L30-3(line 30) no Hoare annotation was computed. [2021-10-16 03:21:46,780 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 21) no Hoare annotation was computed. [2021-10-16 03:21:46,780 INFO L857 garLoopResultBuilder]: For program point L18(line 18) no Hoare annotation was computed. [2021-10-16 03:21:46,781 INFO L857 garLoopResultBuilder]: For program point L18-1(line 18) no Hoare annotation was computed. [2021-10-16 03:21:46,781 INFO L857 garLoopResultBuilder]: For program point L18-3(line 18) no Hoare annotation was computed. [2021-10-16 03:21:46,784 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 03:21:46,790 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:21:46,791 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:21:46,791 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:21:46,797 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:21:46,797 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:21:46,797 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:21:46,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 03:21:46 BoogieIcfgContainer [2021-10-16 03:21:46,798 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 03:21:46,799 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 03:21:46,799 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 03:21:46,799 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 03:21:46,800 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:21:45" (3/4) ... [2021-10-16 03:21:46,806 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-16 03:21:46,818 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-16 03:21:46,819 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-16 03:21:46,820 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 03:21:46,820 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 03:21:46,848 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: temp == 0bv8 && (\exists currentRoundingMode : FloatRoundingMode :: NaN == ~fp.mul~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()))) [2021-10-16 03:21:46,866 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/bin/utaipan-mTDlp9Zugs/witness.graphml [2021-10-16 03:21:46,866 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 03:21:46,868 INFO L168 Benchmark]: Toolchain (without parser) took 2011.73 ms. Allocated memory was 52.4 MB in the beginning and 71.3 MB in the end (delta: 18.9 MB). Free memory was 28.6 MB in the beginning and 47.9 MB in the end (delta: -19.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:21:46,868 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 52.4 MB. Free memory was 32.4 MB in the beginning and 32.4 MB in the end (delta: 33.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:21:46,869 INFO L168 Benchmark]: CACSL2BoogieTranslator took 333.96 ms. Allocated memory was 52.4 MB in the beginning and 71.3 MB in the end (delta: 18.9 MB). Free memory was 28.4 MB in the beginning and 54.3 MB in the end (delta: -25.9 MB). Peak memory consumption was 6.2 MB. Max. memory is 16.1 GB. [2021-10-16 03:21:46,870 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.48 ms. Allocated memory is still 71.3 MB. Free memory was 54.3 MB in the beginning and 52.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 03:21:46,870 INFO L168 Benchmark]: Boogie Preprocessor took 55.28 ms. Allocated memory is still 71.3 MB. Free memory was 52.7 MB in the beginning and 51.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:21:46,871 INFO L168 Benchmark]: RCFGBuilder took 437.36 ms. Allocated memory is still 71.3 MB. Free memory was 51.4 MB in the beginning and 41.2 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 03:21:46,871 INFO L168 Benchmark]: TraceAbstraction took 1023.82 ms. Allocated memory is still 71.3 MB. Free memory was 40.7 MB in the beginning and 50.8 MB in the end (delta: -10.1 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. [2021-10-16 03:21:46,872 INFO L168 Benchmark]: Witness Printer took 67.35 ms. Allocated memory is still 71.3 MB. Free memory was 50.8 MB in the beginning and 47.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-16 03:21:46,874 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 52.4 MB. Free memory was 32.4 MB in the beginning and 32.4 MB in the end (delta: 33.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 333.96 ms. Allocated memory was 52.4 MB in the beginning and 71.3 MB in the end (delta: 18.9 MB). Free memory was 28.4 MB in the beginning and 54.3 MB in the end (delta: -25.9 MB). Peak memory consumption was 6.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 84.48 ms. Allocated memory is still 71.3 MB. Free memory was 54.3 MB in the beginning and 52.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 55.28 ms. Allocated memory is still 71.3 MB. Free memory was 52.7 MB in the beginning and 51.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 437.36 ms. Allocated memory is still 71.3 MB. Free memory was 51.4 MB in the beginning and 41.2 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1023.82 ms. Allocated memory is still 71.3 MB. Free memory was 40.7 MB in the beginning and 50.8 MB in the end (delta: -10.1 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. * Witness Printer took 67.35 ms. Allocated memory is still 71.3 MB. Free memory was 50.8 MB in the beginning and 47.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 15]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 21]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 24]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 27]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 30]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 33]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 36]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 916.5ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 8.9ms, AutomataDifference: 188.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 53.2ms, InitialAbstractionConstructionTime: 10.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 4 SDtfs, 35 SDslu, 1 SDs, 0 SdLazy, 16 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 102.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 116.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 8.9ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 16 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 28.8ms HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 18.4ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 9.6ms SsaConstructionTime, 30.7ms SatisfiabilityAnalysisTime, 256.9ms InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 2 QuantifiedInterpolants, 25 SizeOfPredicates, 4 NumberOfNonLiveVariables, 28 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 9]: Loop Invariant [2021-10-16 03:21:46,891 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:21:46,892 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:21:46,892 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:21:46,892 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:21:46,893 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:21:46,893 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: temp == 0bv8 && (\exists currentRoundingMode : FloatRoundingMode :: NaN == ~fp.mul~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()))) RESULT: Ultimate proved your program to be correct! [2021-10-16 03:21:46,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561f1d28-d406-4865-bec1-5534cb983bfa/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...